From 0fbe559542f78e32bb93a0e51e1294aeec53ba06 Mon Sep 17 00:00:00 2001
From: Arnout Engelen <arnout@bzzt.net>
Date: Fri, 11 Dec 2020 10:27:24 +0100
Subject: [PATCH] libseccomp: make pythonsrc reproducible

makes the pythonsrc reproducible by making the file date and
ordering static.

A more general solution to this problem has been proposed in
https://github.com/NixOS/nixpkgs/issues/106643
---
 pkgs/development/libraries/libseccomp/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/libseccomp/default.nix b/pkgs/development/libraries/libseccomp/default.nix
index ab1df8d2bc1..a0414f5ba55 100644
--- a/pkgs/development/libraries/libseccomp/default.nix
+++ b/pkgs/development/libraries/libseccomp/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   # src input for buildPythonPackage calls
   postInstall = ''
     cp -R ./src/python/ tmp-pythonsrc/
-    tar -zcf $pythonsrc --transform s/tmp-pythonsrc/python-foundationdb/ ./tmp-pythonsrc/
+    tar -zcf $pythonsrc --mtime="@$SOURCE_DATE_EPOCH" --sort=name --transform s/tmp-pythonsrc/python-foundationdb/ ./tmp-pythonsrc/
   '';
 
   meta = with stdenv.lib; {